19973210878

素因数分解:

$2^1\times {\mathrm{173}}^1\times {\mathrm{823}}^1\times {\mathrm{70141}}^1$

素因数の和:71139

約数の個数: 16

約数和(自身を含む): 30170038176

約数和(自身を除く): 10196827298

約数列:

[1, 2, 173, 346, 823, 1646, 70141, 140282, 142379, 284758, 12134393, 24268786, 57726043, 115452086, 9986605439, 19973210878]

約数ペア:

[(1, 19973210878), (2, 9986605439), (173, 115452086), (346, 57726043), (823, 24268786), (1646, 12134393), (70141, 284758), (140282, 142379)]